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H. MUMFORD. Button and Stud.

No. 231,234.v Patented Aug. 17,1880.

INVENTDR.

FIEL?.

WITNESSES.

N. PETERS. PHOTO-LITNDGRAPHER. WASHINGTDN, D C.

UNITED STATES PATENT OEEICE.

CHARLES H. MUMFORD, OF PROVIDENCE, RHODE ISLAND.

BUTTON AND STUD.

SPECIFICATION forming part of Letters Patent No. 231,234, dated August 1'7, 1880.

Application filed December 1, 1879.

To all whom it may concern:

Beit known that LCHARLES H. MUMEORD, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvementin Buttons and Studs; and I do hereby declare that the following specification, taken in connection with the accompanying drawings, forming a part of the same, is a full, clear, and exact description thereof.

My invention relates to that class of buttons and studs made in two separable parts; and my improvement consists in the means employed for securing the part-s against separation when they are combined, as will hereinafter appear.

My improvement is applicable to sleevebuttons, collar-buttons, studs, Svc. 5 but for the purpose of illustrating my invention I have chosen a collar-button, which is represented in Figure l of the drawings in central vertical section, the parts being combined, and in Fig. 2 in perspective, the parts being separated.

Referring to the drawings, A denotes the head of the button, and B the tubular stem attached thereto. C denotes the back or shoe of the button; D, the tubular post secured thereto; and E, a ball provided with a base, which is secured to the post or shoe.

As shown in Fig. 1, the external diameter of the stem is slightly less than the interior diameter ot' the post, and the diameter of the ball is equal to or slightly less than the inte rior diameter of the stem.

In order that the two parts of the button may be securely combined, the stem B is provided with one or more (preferably two) longitudinal slots, b, and its outer end, b', is contracted or turned inward, so that when the said stem is inserted in the post and pressed home its contracted end will embrace the ball E and lock the parts of the button together.

Although I have shown and described the slotted stern as secured to the button-head, and the tubular post and ball as attached to the buttonback, it is obvious that the stem may be applied to the back, and the post and ball to the head of the button, without aft'ecting the co-operative relation of the parts.

I do not claim, broadly, a separable button one part of which is provided with springjaws to clasp a bulbous stem or projection on the other part; but

In a separable button, the head A and slotted tubular stem B, having a contracted outer end, in combination with the shoe C, the tubular post D, fast to said shoe and adapted to receive and t around the stem B, and the ball E in the inner end of the post, adapted to be grasped by the contracted end of stem B when the latter is inserted in the post, all as shown and described.

CHARLES H. MUMFORD.

Witnesses CHARLES R. SlssoN, HENRY W. HAYES. 

